CN203758745U - Engine plateau test simulation device employing intake-exhaust bypassing - Google Patents
Engine plateau test simulation device employing intake-exhaust bypassing Download PDFInfo
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- CN203758745U CN203758745U CN201420159861.XU CN201420159861U CN203758745U CN 203758745 U CN203758745 U CN 203758745U CN 201420159861 U CN201420159861 U CN 201420159861U CN 203758745 U CN203758745 U CN 203758745U
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- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 238000004088 simulation Methods 0.000 title claims abstract description 7
- 238000010790 dilution Methods 0.000 claims description 16
- 239000012895 dilution Substances 0.000 claims description 16
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 3
- 238000007865 diluting Methods 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 3
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- 108010063955 thrombin receptor peptide (42-47) Proteins 0.000 description 2
- 241000009298 Trigla lyra Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
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Abstract
The utility model relates to an engine plateau test simulation device employing intake-exhaust bypassing. The engine plateau test simulation device employing intake-exhaust bypassing comprises an engine intake tube, a fan, and an air duct. The fan is a high-pressure fan. Total intake of the engine intake tube is controlled to be not smaller than the fourfold of maximum intake of an engine. Engine intake-exhaust bypassing is achieved by connecting the engine intake tube and an exhaust tube and serially connecting a one-way valve to the joint of the intake and exhaust tubes. The one-way valve is used for preventing the exhaust of the engine from flowing back into the engine intake tube during an anomaly; an intake regulating valve and the high-pressure fan are used together to feed the gas into the intake tube; the intake tube is provided with a pressure sensor in front of the one-way valve; a connection segment, connected with the engine exhaust tube, in rear of the one-way valve, is a diluting master tube; the pressure sensor is used for measuring interior pressure of the diluting master tube, so that the interior pressure matches with atmospheric pressure of a plateau area, and the engine plateau test meeting the set atmospheric pressure of the plateau area can be performed.
Description
Technical field
The utility model relates to a kind of device at plains region simulated engine highland test, particularly open a kind of intake and exhaust bypass simulated engine highland test device that adopts, can carry out simulated high altitude state in plains region tests engine operating state, and obtain and the identical result that makes a service test in highlands, belong to automated test device technical field.
Background technology
Region the Liao Dynasty of China expands, and has area, sea level, east, also has western highlands, differs several kms.When engine uses in different regions, due to atmospheric pressure difference, air inflow difference is larger, causes and in the time that the engine of plains region research and development uses on plateau, occurs a lot of problems, and performance and parts coupling difference are larger.At present, in exploitation engine process, in order really to obtain the result of highland test, engine performance stand need to be transported to highlands and test, cost is very high like this, and due to coordinative composition of equipments facility imperfection, test effect is undesirable.In order to obtain in plains region the result of highland test, a kind of is to adopt the scheme of revising atmospheric conditions, this scheme is not controlled inlet air conditions, only test findings is revised, be mainly experimental formula correction, this method cannot really be known the measured result under high conditions, may cause very large deviation, be a kind of expedient scheme, can only carry out general test.
Summary of the invention
The purpose of this utility model is to address the deficiencies of the prior art, design a kind of simulated high altitude state engine is carried out to highland test device, adopt intake and exhaust bypass to control intake and exhaust pressure simultaneously, before having overcome, this type of test need to be arrived the scheme that carry out highlands, solve the problem of carrying out the highland test of engine in plains region, make process of the test easier, more economical, be suitable for various engines to carry out highland test.
The utility model is achieved in that a kind of intake and exhaust bypass simulated engine highland test device that adopts, comprise engine air inlet tube, blower fan and air channel, it is characterized in that: described blower fan is high pressure positive blower, the total air inflow of engine air inlet tube is controlled at and is not less than 4 times of engine full admission amount, engine breathing bypass is that engine air inlet tube is connected with gas outlet, entering, gas outlet junction is connected in series a retaining valve, when described retaining valve is used for preventing abnormal conditions, engine exhaust pours in down a chimney to engine air inlet tube, coordinate pneumatic transmission is entered to draft tube with high pressure positive blower by air inlet adjustment valve, draft tube before retaining valve is provided with pressure transducer, after retaining valve is to dilute house steward with the linkage section exhaust pipe of engine, pressure transducer is for measuring the pressure in dilution house steward, it is mated with the atmospheric pressure of the highlands of simulation, to meet the engine highland test of setting highlands atmospheric pressure.On the pipeline between dilution house steward and high pressure positive blower air inlet, be also serially connected with air cooler and steam trap, to ensure the reliability service of high pressure positive blower, ensure that air inlet temperature is 50 DEG C, and effectively remove moisture.On engine air inlet tube, be connected in series thermal type gas quality quantifier, for measuring the numerical value of air input of engine by air.
The utility model has the following advantages compared with prior art:
1, go for the pressure of simulated high altitude test, select suitable blower fan as long as simulate different plateaus;
2, by highland test being simulated in plains region, the work efficiency greatly improving;
3, can, at same bench simulation different altitude height, greatly improve stand utilization factor;
4, can understand the performance of engine under the state of plateau without carry out engine test on plateau, reduce cost of development;
5, pressure control adopts variable frequency control, has greatly improved control accuracy and repeatability.
Brief description of the drawings
Fig. 1 is entire system structural representation of the present utility model.
In figure: 1, air inlet adjustment valve; 2, pressure transducer; 3, retaining valve; 4, dilution house steward; 5, air cooler; 6, steam trap; 7, high pressure positive blower; 8, thermal type gas quality flow meter; 9, engine air inlet tube; 10, engine performance test stand frame; 11, the exhaust pipe of engine; 12, engine; 13, dynamometer machine.
Embodiment
With reference to the accompanying drawings, a kind of intake and exhaust bypass simulated engine highland test device that adopts of the utility model, comprises engine air inlet tube, blower fan and air channel.Blower fan of the present utility model is high pressure positive blower 7, and engine breathing bypass refers to that engine air inlet tube 9 is connected in series a retaining valve 3 in air inlet and exhaust piper junction with the exhaust pipe of engine 11.Air inlet adjustment valve 1, for air inlet is carried out to throttling, is coordinated pneumatic transmission is entered to engine air inlet tube 9 and controls total air inflow with high pressure positive blower 7 by air inlet adjustment valve 1, and meeting total blast volume is 4 times of quality of the large air inflow of engine amount.Draft tube before retaining valve 3 is provided with pressure transducer 2, and pressure transducer 2 adopts absolute pressure transducer.After retaining valve 3 is to dilute house steward 4 with the linkage section exhaust pipe of engine 11., realize and control stable pressure by the frequency conversion of high pressure positive blower 7, the atmospheric pressure of simulated high altitude in dilution house steward 4.Pressure transducer 2, for measuring the pressure in dilution house steward 4, makes it mate with the atmospheric pressure of the highlands of simulation, to meet the engine highland test of setting highlands atmospheric pressure.Retaining valve 3 pours in down a chimney to engine air inlet tube for preventing abnormal conditions engine exhaust.Dilution house steward 4, adopts larger caliber, makes house steward's flow velocity little, simulated high-pressure atmospheric pressure.On the pipeline between dilution house steward 4 and high pressure positive blower 7 air inlets, be also serially connected with air cooler 5 and steam trap 6, air cooler 5 is for controlling the temperature of blower fan air inlet, the moisture that steam trap 6 may be separated out for getting rid of the gas that brings due to gas cooled, to ensure the reliability service of high pressure positive blower 7, ensure that air inlet temperature is 50 DEG C, and effectively remove moisture.On engine air inlet tube 9, be connected in series thermal type gas quality quantifier 8, for measuring the numerical value of air input of engine by air.High pressure positive blower 7 is for producing power to whole dilution house steward's negative pressure.Engine air inlet tube 9, air-breathing from dilution house steward for engine.Threst stand 10 is for measuring engine properties.The exhaust pipe of engine 11, for the exhaust of engine being entered to dilution house steward, finally discharges atmosphere by high pressure positive blower 7 by exhaust silencer.
In the time that engine starts, constantly from dilution house steward 4, get gas, engine exhaust is disposed in dilution house steward 4 by the exhaust pipe of engine 11, makes finally to converge rear total exhaust quality substantially constant.Engine inlet and outlet pressure is simultaneously consistent with the pressure in dilution house steward 4 like this, has ensured that engine inlet and outlet pressure reaches the plateau atmosphere pressure state of needs simultaneously.
Embodiment:
The each number of element types specification of the utility model is as follows:
1, air inlet adjustment valve, adopts electric butterfly valve;
2, absolute pressure transducer, 0～120kPa;
3, retaining valve, adopts 304 stainless steels, caliber DN300;
4, dilution house steward, adopts 304 stainless steels, caliber DN300;
5, air cooler, adopts 304 stainless steels, shell-and-tube, heat exchange power 300kW;
6, steam trap, adopts 304 stainless steels;
7, high pressure positive blower, adopts negative pressure to reach 50kPa;
8, thermal type gas quality flow meter, TOCEIL20N100;
9, engine air inlet tube, adopts 304 stainless steels, caliber DN100;
10, engine performance test stand frame, standard stand;
11, the exhaust pipe of engine, adopts 304 stainless steels, caliber DN100.
Claims (3)
1. one kind adopts intake and exhaust bypass simulated engine highland test device, comprise engine air inlet tube, blower fan and air channel, it is characterized in that: described blower fan is high pressure positive blower, the total air inflow of engine air inlet tube is controlled at and is not less than 4 times of engine full admission amount, engine breathing bypass is that engine air inlet tube is connected with gas outlet, entering, gas outlet junction is connected in series a retaining valve, when described retaining valve is used for preventing abnormal conditions, engine exhaust pours in down a chimney to engine air inlet tube, coordinate pneumatic transmission is entered to draft tube with high pressure positive blower by air inlet adjustment valve, draft tube before retaining valve is provided with pressure transducer, after retaining valve is to dilute house steward with the linkage section exhaust pipe of engine, pressure transducer is for measuring the pressure in dilution house steward, it is mated with the atmospheric pressure of the highlands of simulation, to meet the engine highland test of setting highlands atmospheric pressure.
2. according to the employing intake and exhaust bypass simulated engine highland test device described in claim 1, it is characterized in that: on the pipeline between dilution house steward and high pressure positive blower air inlet, be also serially connected with air cooler and steam trap, to ensure the reliability service of high pressure positive blower, ensure that air inlet temperature is 50 DEG C, and effectively remove moisture.
3. according to the employing intake and exhaust bypass simulated engine highland test device described in claim 1, it is characterized in that: on engine air inlet tube, be connected in series thermal type gas quality quantifier, for measuring the numerical value of air input of engine by air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420159861.XU CN203758745U (en) | 2014-04-03 | 2014-04-03 | Engine plateau test simulation device employing intake-exhaust bypassing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420159861.XU CN203758745U (en) | 2014-04-03 | 2014-04-03 | Engine plateau test simulation device employing intake-exhaust bypassing |
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| Publication Number | Publication Date |
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| CN203758745U true CN203758745U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420159861.XU Expired - Lifetime CN203758745U (en) | 2014-04-03 | 2014-04-03 | Engine plateau test simulation device employing intake-exhaust bypassing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614184A (en) * | 2015-02-12 | 2015-05-13 | 广西玉柴机器股份有限公司 | Simulator in exhaust driven supercharger in simulated highland test of engine |
| CN106415232A (en) * | 2014-01-24 | 2017-02-15 | 瓦伦西亚理工大学 | Device for atmosphere conditioning for testing combustion engines, and associated method and use |
| CN106644611A (en) * | 2017-02-16 | 2017-05-10 | 大友（苏州）风洞技术有限公司 | Discharge sampling tester of engine plateau simulation system |
| CN110017993A (en) * | 2019-04-12 | 2019-07-16 | 武汉东测科技有限责任公司 | Air-intake of combustion engine, pressure at expulsion simulation experiment system and its test method under a kind of simulated high altitude height above sea level weather |
| CN111983544A (en) * | 2019-05-21 | 2020-11-24 | 国网西藏电力有限公司电力科学研究院 | Method and device for testing working voltage of electric energy meter at high altitude |
| CN113670617A (en) * | 2021-08-24 | 2021-11-19 | 江苏蚕丛科技有限公司 | Plateau simulation test bed for air intake and exhaust of engine |
-
2014
- 2014-04-03 CN CN201420159861.XU patent/CN203758745U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106415232A (en) * | 2014-01-24 | 2017-02-15 | 瓦伦西亚理工大学 | Device for atmosphere conditioning for testing combustion engines, and associated method and use |
| CN106415232B (en) * | 2014-01-24 | 2019-06-11 | 瓦伦西亚理工大学 | For the conditioner and correlation technique of engine testing and use |
| CN104614184A (en) * | 2015-02-12 | 2015-05-13 | 广西玉柴机器股份有限公司 | Simulator in exhaust driven supercharger in simulated highland test of engine |
| CN106644611A (en) * | 2017-02-16 | 2017-05-10 | 大友（苏州）风洞技术有限公司 | Discharge sampling tester of engine plateau simulation system |
| CN110017993A (en) * | 2019-04-12 | 2019-07-16 | 武汉东测科技有限责任公司 | Air-intake of combustion engine, pressure at expulsion simulation experiment system and its test method under a kind of simulated high altitude height above sea level weather |
| CN111983544A (en) * | 2019-05-21 | 2020-11-24 | 国网西藏电力有限公司电力科学研究院 | Method and device for testing working voltage of electric energy meter at high altitude |
| CN113670617A (en) * | 2021-08-24 | 2021-11-19 | 江苏蚕丛科技有限公司 | Plateau simulation test bed for air intake and exhaust of engine |
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Granted publication date: 20140806 |